soma

In present study it was found that neuronal somata with "typical chromatolysis" or "cell body response" were located in caudal part of fifth cervical segment, whole of the lengths of sixth seventh and eight cervical segments and cranial part of first thoracic segment.

This is due to presence of motor neuron somata of radial nerve in different groups of ventral grey horn of spinal cord and not in whole of the width of segments.

CONCLUSION: Conclusion drawn from above study is that, the cranio-caudal extent of spinal cord harboring the motor neuron somata of radial nerve in rabbit extends from the caudal part of fifth cervical segment to cranial part of first thoracic segment.